import axios from 'axios'
import { Session } from './storage'
import errorCode from './errorCode'
import { ElMessageBox, ElMessage } from 'element-plus'
import router from "../router/index"


// 创建实例
const service = axios.create({
  baseURL: import.meta.env.VITE_API_URL,
  timeout: 50000,
  headers: { 'Content-Type': 'application/json' },
})

// 请求拦截
service.interceptors.request.use(
  (config) => {
    // 是否需要设置 token
    const isToken = (config.headers || {}).isToken === false
    if (Session.get('token') && !isToken) {
      // @ts-ignore
      config.headers['Authorization'] = 'Bearer ' + Session.get('token')
    }
    return config
  },
  (error) => {
    return Promise.reject(error)
  }
)

// 响应拦截
service.interceptors.response.use(
  (res) => {
    // 未设置状态码则默认成功状态
    const code = res.data.code || 200
    // 获取错误信息
    // @ts-ignore
    const msg = errorCode[code] || res.data.msg || errorCode['default']
    // 二进制数据则直接返回
    if (
      res.request.responseType === 'blob' ||
      res.request.responseType === 'arraybuffer'
    ) {
      return res.data
    }
    if (code === 401) {
      ElMessageBox.confirm(
        '登录状态已过期，您可以继续留在该页面，或者重新登录',
        '系统提示',
        {
          confirmButtonText: '重新登录',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).then(() => {
        Session.clear()
        router.replace({
          path: '/login',
        })
      })
    } else if (code === 500) {
      ElMessage({
        message: msg,
        type: 'error',
      })
      return Promise.reject(new Error(msg))
    } else if (code !== 200) {
      ElMessage({
        message: msg,
        type: 'error',
      })
      return Promise.reject('error')
    } else {
      return res.data
    }
  },
  (error) => {
    console.log('err' + error)
    let { message } = error
    if (message == 'Network Error') {
      message = '后端接口连接异常'
    } else if (message.includes('timeout')) {
      message = '系统接口请求超时'
    } else if (message.includes('Request failed with status code')) {
      message = '系统接口' + message.substr(message.length - 3) + '异常'
    }
    ElMessage({
      message: message,
      type: 'error',
      duration: 5 * 1000,
    })
    return Promise.reject(error)
  }
)

// 导出 axios 实例
export default service
